CN113851836B - Wi-Fi and Bluetooth combined antenna device, configuration method thereof and terminal equipment - Google Patents

Wi-Fi and Bluetooth combined antenna device, configuration method thereof and terminal equipment Download PDF

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Publication number
CN113851836B
CN113851836B CN202111091425.4A CN202111091425A CN113851836B CN 113851836 B CN113851836 B CN 113851836B CN 202111091425 A CN202111091425 A CN 202111091425A CN 113851836 B CN113851836 B CN 113851836B
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CN
China
Prior art keywords
antenna
bluetooth
current
grounding plate
perturbation
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Active
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CN202111091425.4A
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Chinese (zh)
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CN113851836A (en
Inventor
官乔
王毅
魏鲲鹏
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Honor Device Co Ltd
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Honor Device Co Ltd
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Priority to CN202111091425.4A priority Critical patent/CN113851836B/en
Publication of CN113851836A publication Critical patent/CN113851836A/en
Priority to EP22868979.0A priority patent/EP4290693A1/en
Priority to US18/279,301 priority patent/US20240145902A1/en
Priority to PCT/CN2022/114297 priority patent/WO2023040605A1/en
Application granted granted Critical
Publication of CN113851836B publication Critical patent/CN113851836B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application belongs to the technical field of communication, and particularly relates to a Wi-Fi and Bluetooth combined antenna device, a configuration method thereof and terminal equipment. The Wi-Fi and Bluetooth combined antenna device comprises a Wi-Fi antenna, a ground plate, a perturbation unit and a Bluetooth antenna. The Wi-Fi antenna generates a ground plate current on the ground plate; the perturbation unit is used for generating reverse current after being excited by the current of the grounding plate, and the current zero area is formed on the grounding plate after the reverse current and the current of the grounding plate are superposed; the Bluetooth antenna is arranged at the edge of the grounding plate corresponding to the position of the current zero area. Therefore, the influence of floor current on the Bluetooth antenna is preferably reduced, the isolation between the Bluetooth antenna and the Wi-Fi antenna is preferably improved, and the decoupling of the Bluetooth antenna and the Wi-Fi antenna in the same fault frequency band during simultaneous working is also preferably realized, so that the Bluetooth antenna and the Wi-Fi antenna have better working performance in the same frequency band during simultaneous working.

Description

Wi-Fi and Bluetooth combined antenna device, configuration method thereof and terminal equipment
Technical Field
The application belongs to the technical field of communication, and particularly relates to a Wi-Fi and Bluetooth combined antenna device, a configuration method thereof and terminal equipment.
Background
Existing terminal equipment such as a tablet, a mobile phone and the like are often provided with a Wi-Fi antenna and a Bluetooth antenna, the Wi-Fi antenna and the Bluetooth antenna usually work in the same frequency band, and when the Wi-Fi module and the Bluetooth module share the same antenna, a time division strategy is adopted, so that when the Bluetooth module works, the performance of the Wi-Fi module is rapidly reduced.
Disclosure of Invention
An object of the embodiments of the present application is to provide a Wi-Fi and bluetooth combined antenna apparatus, a configuration method thereof, and a terminal device, which can improve isolation between a Wi-Fi antenna and a bluetooth antenna, so that the bluetooth antenna and the Wi-Fi antenna both have better working performance when working at the same frequency band.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
in a first aspect: provided is a Wi-Fi and Bluetooth combined antenna device, including:
a Wi-Fi antenna;
a ground plane, the Wi-Fi antenna being disposed at an edge of the ground plane and capable of generating a ground plane current on the ground plane;
the perturbation unit is arranged at the edge of the grounding plate and used for generating reverse current in a direction opposite to the incoming wave direction of the grounding plate current after being excited by the grounding plate current, and the reverse current and the grounding plate current are superposed to form a current zero area on the grounding plate;
the Bluetooth antenna is arranged at the position, corresponding to the current zero area, of the edge of the grounding plate.
Therefore, as the Wi-Fi and Bluetooth combined antenna device comprises the perturbation unit, and the perturbation unit can form floor current on the grounding plate by the Wi-Fi antenna, excited by the floor current to generate a reverse current in a direction opposite to the incoming wave direction of the floor current, therefore, the reverse current and the floor current are mutually superposed to form a current zero area on the floor, the Bluetooth antenna is arranged at the position of the edge of the grounding plate corresponding to the current zero area, the influence of the floor current on the Bluetooth antenna is preferably reduced, the isolation between the Bluetooth antenna and the Wi-Fi antenna is preferably improved, and the decoupling of the Bluetooth antenna and the Wi-Fi antenna when the Bluetooth antenna and the Wi-Fi antenna work at the same fault frequency band is also preferably realized, therefore, the Bluetooth antenna and the Wi-Fi antenna have better working performance when working at the same frequency band.
Optionally, the Wi-Fi antenna and the perturbation unit are respectively disposed at two opposite corner positions of the ground plate. For example, the Wi-Fi antenna and the perturbation unit may be respectively disposed at two ends of the edge on the same side of the floor, or the Wi-Fi antenna and the perturbation unit may be respectively disposed at two adjacent edges of the floor. Such as Wi-Fi antennas, may be placed at the long side of the ground plane and the perturbation unit may be placed at the short side of the ground plane.
Optionally, the number of the perturbation units is two, the two perturbation units are diagonally arranged at two corner positions of the ground plate relative to the center of the ground plate, and the Wi-Fi antenna is arranged at another corner position of the ground plate. Illustratively, the two perturbation units can be respectively placed on the two opposite long sides of the ground plate, and also can be respectively placed at the adjacent long side and short side of the ground plate, that is, the two perturbation units can be placed in parallel or orthogonally.
Optionally, the resonance frequencies of both said perturbation units are the same.
Optionally, the two perturbation units have different resonant frequencies, and the difference between the resonant frequencies of the two perturbation units is greater than 0MHz and less than or equal to 100 MHz.
Optionally, the perturbation unit includes a radiator, a connection portion, and a resistance-capacitance matching network, where the radiator is connected to the ground plate through the connection portion, and the resistance-capacitance matching network is connected to an open end of the radiator and configured to output the reverse current to the ground plate. When the resonant frequencies of the two perturbation units are the same, the rc matching networks have the same equivalent capacitance (for example, 0.3pF each). And when the resonant frequencies of the two perturbation units are the same, the RC matching network has different equivalent capacitances (for example, 0.3pF and 0.35pF, respectively).
Optionally, the connecting portion and the radiator are integrally formed;
or the connecting part is a metal elastic sheet, one end of the metal elastic sheet is connected with the radiator in a welded mode, and the other end of the metal elastic sheet is connected with the ground plate in a welded mode.
Optionally, the length, thickness and headroom of the radiator satisfy the following relationship:
10mm≤L≤18mm；
0.8mm≤C≤1.2mm；
0.8mm≤D≤1.2mm；
wherein L represents a length of the radiator, C represents a thickness of the radiator, and D represents a headroom of the radiator.
In a second aspect: a configuration method of a Wi-Fi and Bluetooth combined antenna device is provided, which comprises the following steps:
providing a Wi-Fi antenna and a ground plate, and arranging the Wi-Fi antenna at the edge of the ground plate;
providing a perturbation unit, arranging the perturbation unit at the edge of the grounding plate, and enabling the perturbation unit and the Wi-Fi antenna to be oppositely arranged;
acquiring the position of a current zero area formed on the grounding plate after the grounding plate current generated on the grounding plate by the Wi-Fi antenna and the reverse current generated on the grounding plate by the perturbation unit are superposed;
and providing a Bluetooth antenna, and arranging the Bluetooth antenna at the position of the edge of the grounding plate corresponding to the current zero area.
The configuration method of the Wi-Fi and Bluetooth combined antenna device provided by the embodiment of the application is characterized in that the perturbation unit is arranged at the edge of the grounding plate, and the perturbation unit and the Wi-Fi antenna are oppositely arranged, so that the perturbation unit can generate reverse current in the direction opposite to the incoming wave direction of the floor current under the excitation of the floor current when the Wi-Fi antenna forms the floor current on the grounding plate, the reverse current and the floor current are mutually superposed, and a current zero area can be formed on the floor, therefore, the Bluetooth antenna is arranged at the position of the edge of the grounding plate corresponding to the current zero area, the influence of the floor current on the Bluetooth antenna is preferably reduced, the isolation between the Bluetooth antenna and the Wi-Fi antenna is preferably improved, and the decoupling of the Bluetooth antenna and the Wi-Fi antenna when the Bluetooth antenna and the Wi-Fi antenna work at the same fault frequency band is also preferably realized, therefore, the Bluetooth antenna and the Wi-Fi antenna have better working performance when working at the same frequency band.
In a third aspect, a terminal device is provided, which includes the above Wi-Fi and bluetooth combined antenna apparatus.
The terminal equipment provided by the embodiment of the application comprises the Wi-Fi and Bluetooth combined antenna device, and the Wi-Fi and Bluetooth combined antenna device realizes decoupling of the Bluetooth antenna and the Wi-Fi antenna when the Bluetooth antenna and the Wi-Fi antenna work at the same fault frequency band simultaneously through the perturbation unit arranged in the Wi-Fi and Bluetooth combined antenna device, so that the Bluetooth antenna and the Wi-Fi antenna have better isolation, and can have better working performance when the Bluetooth antenna and the Wi-Fi antenna work at the same frequency band simultaneously, therefore, the terminal equipment is connected with a Wi-Fi network, and when the Bluetooth antenna is used for connecting external equipment, the Bluetooth antenna and the Wi-Fi antenna can be prevented from being influenced mutually, and the terminal equipment has better user product experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a first schematic structural diagram of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present application;
fig. 3 is a schematic structural diagram three of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a perturbation unit of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present application;
fig. 6 is a diagram illustrating a floor current distribution of a ground plane of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present disclosure;
FIG. 7 is a first graph of S-parameters of a combined Wi-Fi and Bluetooth antenna apparatus according to an embodiment of the present disclosure as a function of frequency;
fig. 8 is a second graph of S parameters of the Wi-Fi and bluetooth combined antenna apparatus varying with frequency according to the embodiment of the present application;
FIG. 9 is a third graph of S-parameters of a Wi-Fi and Bluetooth combined antenna apparatus according to an embodiment of the present application as a function of frequency;
fig. 10 is a graph four of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus according to the embodiment of the present application as a function of frequency;
fig. 11 is a graph five of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus according to the embodiment of the present application as a function of frequency;
fig. 12 is a sixth graph of S-parameters of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present application as a function of frequency;
fig. 13 is a distribution diagram of ground plane characteristic mode current magnitude points of a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present disclosure;
fig. 14 is a distribution summary diagram of ground plane characteristic mode current magnitude points of the Wi-Fi and bluetooth combined antenna apparatus according to the embodiment of the present application;
fig. 15 is a flowchart illustrating a method for configuring a Wi-Fi and bluetooth combined antenna apparatus according to an embodiment of the present disclosure.
Wherein, in the figures, the respective reference numerals:
10-Wi-Fi antenna 20-ground plate 30-perturbation unit
40-Bluetooth antenna 50-stylus pen 31-radiator
32-rc matching network 33-connection.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1 to 15 are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
The proper nouns appearing in the examples of the present application are explained further below:
Wi-Fi, the translation of Chinese to a mobile hotspot or wireless network, is a wireless local area network technology that is built into the IEEE 802.11 standard.
Bluetooth (BT), an open global specification for wireless data and voice communications, is a special short-range wireless technology connection that establishes a communication environment for fixed and mobile devices based on a low-cost short-range wireless connection.
Isolation, coupling loss between transmitting and receiving antennas of different systems is greater than a minimum threshold for generating interference between systems, and the coupling loss is isolation.
Existing terminal equipment such as a tablet, a mobile phone and the like are often provided with a Wi-Fi antenna and a Bluetooth antenna, the Wi-Fi antenna and the Bluetooth antenna usually work in the same frequency band, and when the Wi-Fi module and the Bluetooth module share the same antenna, a time division strategy is adopted, so that when the Bluetooth module works, the performance of the Wi-Fi module is sharply reduced.
Therefore, the embodiment of the application provides a Wi-Fi and Bluetooth combined antenna device, a configuration method thereof and terminal equipment, which can improve the isolation between a Wi-Fi antenna and a Bluetooth antenna, so that the Bluetooth antenna and the Wi-Fi antenna have better working performance when working at the same frequency band.
In this embodiment, the terminal device may be a tablet computer, a notebook computer, a mobile phone, or the like.
In a first aspect, referring to fig. 1 to 3, an embodiment of the present application provides a Wi-Fi and bluetooth combined antenna apparatus, which includes a Wi-Fi antenna 10, a ground plane 20, a perturbation unit 30 and a bluetooth antenna 40. Wherein, the Wi-Fi antenna 10 is disposed at an edge of the ground plate 20 and is capable of generating a ground plate 20 current on the ground plate 20. The perturbation unit 30 is disposed at the edge of the ground plate 20 and is used for generating a reverse current in a direction opposite to the incoming wave direction of the current of the ground plate 20 after being excited by the current of the ground plate 20, and the reverse current and the current of the ground plate 20 are superimposed to form a current zero area on the ground plate 20. The bluetooth antenna 40 is disposed at a position corresponding to a current zero region (shown in a dotted frame in fig. 6) at the edge of the ground plate 20.
Illustratively, Wi-Fi antenna 10 may be a left-handed antenna, the radiating body of Wi-Fi antenna 10 may be 15mm in length, its thickness may be 1mm, and the antenna headroom may be 1 mm.
Illustratively, the length and width of the ground plate 20 may be 245mm/155mm, or may be 155mm/80mm or 245mm/200mm, etc.
The Wi-Fi and bluetooth combined antenna apparatus provided in the embodiments of the present application is further described as follows: in the Wi-Fi and bluetooth combined antenna apparatus provided in the embodiment of the present application, since the Wi-Fi and bluetooth combined antenna apparatus includes the perturbation unit 30, and the perturbation unit 30 can generate a reverse current in a direction opposite to an incoming wave direction of a floor current by being excited by the floor current when the Wi-Fi antenna 10 forms the floor current on the floor 20, so that the reverse current and the floor current are mutually superimposed, and a current zero area can be formed on the floor, and then the bluetooth antenna 40 is disposed at a position corresponding to the current zero area on the edge of the floor 20, so as to preferably reduce an influence of the floor current on the bluetooth antenna 40, preferably improve an isolation between the bluetooth antenna 40 and the Wi-Fi antenna 10, and preferably achieve a decoupling of the bluetooth antenna 40 and the Wi-Fi antenna 10 when the two antennas operate simultaneously in a same fault frequency band, so that the bluetooth antenna 40 and the Wi-Fi antenna 10 operate simultaneously in the same frequency band, all have better working performance, also make Wi-Fi and bluetooth combination antenna dress suitable for the terminal equipment that has the metal back lid.
For example, as shown in fig. 7 and fig. 8, comparing the Wi-Fi and bluetooth combined antenna apparatus before and after adding the perturbation unit 30 (the curve labeled 1 in fig. 7 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus with no perturbation unit 30 added, and the curve labeled 2 in fig. 7 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus with perturbation unit 30 added, with frequency), the S11 curve of the Wi-Fi antenna 10 has no obvious pits, the radiation efficiency of the Wi-Fi antenna 10 has no obvious deterioration, the transmission curve S12 of the Wi-Fi antenna 10 has zero isolation (S12 pits), the isolation exceeds 40dB, and is obviously improved (the peak value of the isolation is improved by 8-12 dB, and the average value is improved by about 6 dB).
In other embodiments of the present application, as shown in fig. 1 to 3, the Wi-Fi antenna 10 and the perturbation unit 30 are respectively disposed at two opposite corner positions of the ground plate 20. Specifically, the Wi-Fi antenna 10 and the perturbation unit 30 are respectively disposed at two opposite corner positions of the ground plate 20, so that the influence of the perturbation unit 30 on the Wi-Fi antenna 10 can be reduced, and the Wi-Fi antenna 10 can have good working performances such as bandwidth performance, transmission efficiency, transmission directivity, dual-mode performance and the like in the presence of the perturbation unit 30.
For example, the Wi-Fi antenna 10 and the perturbation unit 30 may be respectively disposed at two end positions of the edge on the same side of the floor, or the Wi-Fi antenna 10 and the perturbation unit 30 may be respectively disposed at two adjacent side edges of the floor. Such as the Wi-Fi antenna 10, may be placed at the long side of the ground plane 20 and the perturbation unit 30 may be placed at the short side of the ground plane 20.
In other embodiments of the present application, as shown in fig. 3 and 4, the number of the perturbation units 30 is two, two perturbation units 30 are disposed at two corner positions of the ground plate 20 diagonally with respect to the center of the ground plate 20, and the Wi-Fi antenna 10 is disposed at another corner position of the ground plate 20.
Specifically, by setting the number of the perturbation units 30 to two, the reverse current generated by the two perturbation units 30 is superposed with the floor current generated by the Wi-Fi antenna 10, so that the floor current generated by the Wi-Fi antenna 10 can be better cancelled, the influence of the floor current on the bluetooth antenna 40 is smaller, and the bluetooth antenna 40 and the Wi-Fi antenna 10 have better isolation.
Illustratively, the two perturbation units 30 may be respectively disposed at two opposite long sides of the ground plate 20, and may also be respectively disposed at the adjacent long side and short side of the ground plate 20, that is, the two perturbation units 30 may be disposed in parallel or orthogonally.
In other embodiments of the present application, the resonant frequencies of the two perturbation units 30 may be the same or different. And when the two perturbation units 30 are different, the difference of the resonance frequencies of the two perturbation units 30 is greater than 0MHz and less than or equal to 100 MHz. This may better cancel out the floor current generated by the Wi-Fi antenna 10, thereby allowing for better isolation between the bluetooth antenna 40 and the Wi-Fi antenna 10.
Exemplarily, as shown in fig. 8, when two perturbation units 30 are arranged in parallel and the resonant frequencies are the same, the isolation peak is increased by 10dB (the curve numbered 1 in fig. 8 represents the graph of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus as frequency changes when no perturbation unit 30 is added, the curve numbered 3 in fig. 8 represents the graph of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus as frequency changes when two perturbation units 30 having the same resonant frequency are added, and the curve numbered 2 in fig. 8 represents the graph of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus as frequency changes when two perturbation units 30 having different resonant frequencies are added), whereas when two perturbation units 30 are arranged in parallel and the resonant frequencies are different, the isolation peak is increased by 23dB and the average is increased by 7 dB.
Illustratively, as shown in fig. 8, when two perturbation units 30 are arranged in parallel and the resonant frequencies are the same, the isolation peak value is increased by 10dB (the curve labeled 1 in fig. 8 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus with frequency change when no perturbation unit 30 is added, the curve labeled 3 in fig. 8 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus with frequency change when two perturbation units 30 with the same resonant frequency are added, the curve labeled 2 in fig. 8 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna apparatus with frequency change when two perturbation units 30 with different resonant frequencies are added), whereas when two perturbation units 30 are arranged in parallel and the resonant frequencies are different, the isolation peak value is increased by 23dB and the average value is increased by 7 dB.
Illustratively, as shown in fig. 9, when two perturbation units 30 are orthogonally arranged and the resonant frequencies are the same, the isolation peak value is increased by 8dB to 12dB (the curve labeled 1 in fig. 9 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna device with frequency change when the perturbation unit 30 is not added, the curve labeled 3 in fig. 9 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna device with frequency change when two perturbation units 30 with the same resonant frequency are added, the curve labeled 2 in fig. 9 represents the curve of the S parameter of the Wi-Fi and bluetooth combined antenna device with frequency change when two perturbation units 30 with different resonant frequencies are added), when the two perturbation units 30 are orthogonally arranged and the resonant frequencies are different, the peak value of the isolation is improved by 19dB to 24dB, and the average value is improved by 5dB to 7 dB.
Illustratively, as shown in fig. 10, when two perturbation units 30 are orthogonally arranged and the resonant frequencies are different, the peak isolation value is improved by 36dB, and the average value is improved by 10 dB. And the directivity of the Wi-Fi antenna 10 is changed from 3.7dBi to 3.8dBi, so that the influence of the existence of the two perturbation units 30 on the Wi-Fi antenna 10 is basically negligible.
Illustratively, as shown in fig. 11 and 12, when the length and width dimensions of the ground plate 20 are 245mm/200mm, the result shows that the peak of the isolation can be improved by 10dB (shown in fig. 11). When the length and width of the ground plate 20 is 155mm/80mm, the result shows that the isolation peak can be improved by 3.5dB when the independent Bluetooth is placed at the zero area formed by the Wi-Fi and the perturbation unit (shown in figure 12).
In other embodiments of the present application, as shown in fig. 5, the perturbation unit 30 includes a radiator 31, a connection part 33, and a rc matching network 32, the radiator 31 is connected to the ground plane 20 through the connection part 33, and the rc matching network 32 is connected to an open end of the radiator 31 and is configured to output a reverse current to the ground plane 20.
Specifically, the open end of the radiator 31 faces the ground, which enables the rc matching network 32 to output a reverse current to the ground plate 20 better. More specifically, the rc matching network 32 is a lumped element including a resistor and a capacitor or further including a switch.
Illustratively, when the resonant frequencies of the two perturbation units 30 are the same, the rc matching networks 32 have the same equivalent capacitance (e.g., 0.3pF each). When the resonant frequencies of the two perturbation units 30 are the same, the rc matching network 32 has different equivalent capacitances (e.g. 0.3pF and 0.35pF, respectively).
For example, as shown in fig. 13 to 14, when the Wi-Fi antenna 10 operates in different frequency bands, the distribution positions of the zero points of the floor current at the edge of the ground plate 20 may be marked, and the positions are summarized and analyzed to obtain the ideal positions where the perturbation units 30 are placed at the edge of the ground plate 20.
In other embodiments of the present application, the connection portion 33 and the radiator 31 are integrally formed. Specifically, by integrally molding the connection part 33 and the radiator 31, the overall structural strength of the perturbation unit 30 may be improved, so that cracks are not easily generated at the connection part between the connection part 33 and the radiator 31, and thus the operational reliability of the perturbation unit 30 is also improved.
For example, the connection portion 33 and the radiator 31 may be formed by integral casting or the like.
In other embodiments of the present application, the connection portion 33 is a metal dome, one end of the metal dome is welded to the radiator 31, and the other end of the metal dome is welded to the ground plate 20. Specifically, by designing the connection portion 33 as a metal elastic sheet, the connection portion 33 also has a better elastic buffer performance, so that when the perturbation unit 30 is affected by external impact vibration, the connection portion 33 can also resolve the impact force applied to the perturbation unit 30 through elastic deformation, so that the perturbation unit 30 is not easily separated from the ground plate 20.
In other embodiments of the present application, the length, thickness and headroom of the radiator 31 satisfy the following relationship:
10mm≤L≤18mm；
0.8mm≤C≤1.2mm；
0.8mm≤D≤1.2mm；
where L denotes a length of the radiator 31, C denotes a thickness of the radiator 31, and D denotes a headroom of the radiator 31.
Specifically, by setting the length, thickness and clearance of the radiator 31 within the above-mentioned limits, it is possible to smoothly generate a reverse current when the radiator 31 is excited by a floor current, and to avoid occupying the space for placing the stylus pen 50 when the perturbation unit 30 and the stylus pen 50 are both located on the same side of the ground plate 20.
As shown in fig. 15, in a second aspect, an embodiment of the present application further provides a method for configuring a Wi-Fi and bluetooth combined antenna apparatus, including the following steps:
providing a Wi-Fi antenna 10 and a ground plate 20, and arranging the Wi-Fi antenna 10 at the edge of the ground plate 20;
providing a perturbation unit 30, arranging the perturbation unit 30 at the edge of the grounding plate 20, and enabling the perturbation unit 30 and the Wi-Fi antenna 10 to be oppositely arranged;
acquiring the position of a current zero area formed on the ground plate 20 after the current of the ground plate 20 generated on the ground plate 20 by the Wi-Fi antenna 10 and the reverse current generated on the ground plate 20 by the perturbation unit 30 are superposed;
a bluetooth antenna 40 is provided, and the bluetooth antenna 40 is disposed at a position corresponding to the current zero region at the edge of the ground plate 20.
Specifically, the sequence of steps of the configuration method of the Wi-Fi and bluetooth combined antenna apparatus may be:
s1: providing a Wi-Fi antenna 10 and a ground plate 20, and arranging the Wi-Fi antenna 10 at the edge of the ground plate 20;
s2: providing a perturbation unit 30, arranging the perturbation unit 30 at the edge of the grounding plate 20, and enabling the perturbation unit 30 and the Wi-Fi antenna 10 to be oppositely arranged;
s3: acquiring the position of a current zero area formed on the ground plate 20 after the current of the ground plate 20 generated on the ground plate 20 by the Wi-Fi antenna 10 and the reverse current generated on the ground plate 20 by the perturbation unit 30 are superposed;
s4: a bluetooth antenna 40 is provided, and the bluetooth antenna 40 is disposed at a position corresponding to the current zero region at the edge of the ground plate 20.
In the configuration method of the Wi-Fi and bluetooth combined antenna apparatus provided in the embodiment of the present application, the perturbation unit 30 is disposed at the edge of the ground plate 20, and the perturbation unit 30 and the Wi-Fi antenna 10 are disposed oppositely, so that when the Wi-Fi antenna 10 forms a floor current on the ground plate 20, the perturbation unit 30 is excited by the floor current to generate a reverse current in a direction opposite to a direction of an incoming wave of the floor current, and thus the reverse current and the floor current are mutually superposed to form a current zero area on the floor, and then the bluetooth antenna 40 is disposed at a position corresponding to the current zero area at the edge of the ground plate 20, so that an influence of the floor current on the bluetooth antenna 40 is preferably reduced, isolation between the bluetooth antenna 40 and the Wi-Fi antenna 10 is preferably improved, and decoupling of the bluetooth antenna 40 and the Wi-Fi antenna 10 when working at the same fault frequency band is also preferably realized, therefore, the bluetooth antenna 40 and the Wi-Fi antenna 10 have better working performance when working at the same frequency band.
In a third aspect, an embodiment of the present application provides a terminal device, which includes the above Wi-Fi and bluetooth combined antenna apparatus. The terminal device can be a tablet computer, a notebook computer or a mobile phone.
The terminal device provided by the embodiment of the application comprises the Wi-Fi and Bluetooth combined antenna device, and the Wi-Fi and Bluetooth combined antenna device realizes decoupling of the Bluetooth antenna 40 and the Wi-Fi antenna 10 when working at the same fault frequency band through the perturbation unit 30 arranged in the Wi-Fi and Bluetooth combined antenna device, so that the Bluetooth antenna 40 and the Wi-Fi antenna 10 have better isolation, and can have better working performance when working at the same frequency band, therefore, when the terminal device is connected with a Wi-Fi network, and simultaneously uses the Bluetooth antenna 40 to connect with an external device, such as a handwriting pen 50, the Bluetooth antenna 40 and the Wi-Fi antenna 10 can not affect each other, and the terminal device has better user product experience.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the invention is intended to cover all modifications, equivalents and improvements falling within the spirit and scope of the present invention.

Claims (9)

1. A Wi-Fi and bluetooth combination antenna device which characterized in that: the method comprises the following steps:
a Wi-Fi antenna;
a ground plane, the Wi-Fi antenna being disposed at an edge of the ground plane and capable of generating a ground plane current on the ground plane;
the Wi-Fi antenna and the perturbation unit are respectively arranged at two opposite corner positions of the grounding plate, the perturbation unit is arranged at the edge of the grounding plate and is used for generating a reverse current in a direction opposite to the incoming wave direction of the grounding plate current after being excited by the grounding plate current, and the reverse current and the grounding plate current are superposed to form a current zero area on the grounding plate;
the Bluetooth antenna is arranged at the position, corresponding to the current zero area, of the edge of the grounding plate.
2. The Wi-Fi and bluetooth combined antenna apparatus of claim 1, wherein: the number of the perturbation units is two, the two perturbation units are diagonally arranged at two corner positions of the grounding plate relative to the center of the grounding plate, and the Wi-Fi antenna is arranged at the other corner position of the grounding plate.
3. The Wi-Fi and bluetooth combined antenna apparatus of claim 2, wherein: the resonance frequencies of the two perturbation units are the same.
4. The Wi-Fi and bluetooth combined antenna device of claim 2, wherein: the two perturbation units have different resonant frequencies, and the difference value of the resonant frequencies of the two perturbation units is greater than 0MHz and less than or equal to 100 MHz.
5. The Wi-Fi and Bluetooth combined antenna apparatus of any of claims 1-4, wherein: the perturbation unit comprises a radiation body, a connecting part and a resistance-capacitance matching network, wherein the radiation body is connected with the grounding plate through the connecting part, and the resistance-capacitance matching network is connected to the open end of the radiation body and used for outputting the reverse current to the grounding plate.
6. The Wi-Fi and bluetooth combined antenna apparatus of claim 5, wherein: the connecting part and the radiating body are integrally formed;
or the connecting part is a metal elastic sheet, one end of the metal elastic sheet is connected with the radiator in a welded mode, and the other end of the metal elastic sheet is connected with the ground plate in a welded mode.
7. The Wi-Fi and bluetooth combined antenna apparatus of claim 5, wherein: the length, thickness and clearance of the radiator satisfy the following relationship:
10mm≤L≤18mm；
0.8mm≤C≤1.2mm；
0.8mm≤D≤1.2mm；
wherein L represents a length of the radiator, C represents a thickness of the radiator, and D represents a headroom of the radiator.
8. A configuration method of a Wi-Fi and Bluetooth combined antenna device is characterized in that: the method comprises the following steps:
providing a Wi-Fi antenna and a ground plate, and arranging the Wi-Fi antenna at the edge of the ground plate;
providing a perturbation unit, arranging the perturbation unit at the edge of the grounding plate, and respectively arranging the perturbation unit and the Wi-Fi antenna at two opposite corner positions of the grounding plate;
acquiring the position of a current zero area formed on the grounding plate after the grounding plate current generated on the grounding plate by the Wi-Fi antenna and the reverse current generated on the grounding plate by the perturbation unit are superposed;
and providing a Bluetooth antenna, and arranging the Bluetooth antenna at the position of the edge of the grounding plate corresponding to the current zero area.
9. A terminal device comprising the Wi-Fi and bluetooth combined antenna apparatus as claimed in any one of claims 1 to 7.
CN202111091425.4A 2021-09-17 2021-09-17 Wi-Fi and Bluetooth combined antenna device, configuration method thereof and terminal equipment Active CN113851836B (en)

Priority Applications (4)

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CN202111091425.4A CN113851836B (en) 2021-09-17 2021-09-17 Wi-Fi and Bluetooth combined antenna device, configuration method thereof and terminal equipment
EP22868979.0A EP4290693A1 (en) 2021-09-17 2022-08-23 Wi-fi and bluetooth combined antenna device and configuration method therefor, and terminal device
US18/279,301 US20240145902A1 (en) 2021-09-17 2022-08-23 Wi-fi and bluetooth combined antenna apparatus and configuration method therefor, and terminal device
PCT/CN2022/114297 WO2023040605A1 (en) 2021-09-17 2022-08-23 Wi-fi and bluetooth combined antenna device and configuration method therefor, and terminal device

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111129752A (en) * 2020-01-08 2020-05-08 朴海燕 Self-decoupling MIMO antenna system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006229528A (en) * 2005-02-17 2006-08-31 Matsushita Electric Ind Co Ltd Antenna device and mobile wireless apparatus employing the same
US7417591B2 (en) * 2005-02-17 2008-08-26 Matsushita Electric Industrial Co., Ltd. Antenna apparatus and portable wireless device using the same
KR101050262B1 (en) * 2009-05-13 2011-07-19 경기대학교 산학협력단 MIO antenna device
CN103326122A (en) * 2012-03-23 2013-09-25 泰科电子(上海)有限公司 Antenna assembly, electronic device comprising antenna assembly and method for adjusting antenna performance
WO2017069181A1 (en) * 2015-10-22 2017-04-27 株式会社村田製作所 Antenna device
US10389021B1 (en) * 2018-02-15 2019-08-20 Intel Corporation Antenna ports decoupling technique
CN111653873B (en) * 2019-03-03 2021-11-16 仁宝电脑工业股份有限公司 Antenna structure
CN211017410U (en) * 2019-11-28 2020-07-14 深圳市同博威科技有限公司 High-isolation PCB antenna structure
CN110829026A (en) * 2019-12-06 2020-02-21 朴海燕 Isolated ground radiation antenna and MIMO antenna system
CN113851836B (en) * 2021-09-17 2022-09-02 荣耀终端有限公司 Wi-Fi and Bluetooth combined antenna device, configuration method thereof and terminal equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111129752A (en) * 2020-01-08 2020-05-08 朴海燕 Self-decoupling MIMO antenna system

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